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I have a weird problem with my mouse pointer whereby the pointer moves upwards and downwards by itself. I have checked the mouse settings and these are normal. I didn't download any free cursor from the internet.

Does someone have an explanation for this please?

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It would be useful if you gave some details, such as OS, mouse brand/version info, etc. –  Ian Atkin Dec 2 '12 at 20:20

1 Answer 1

If its wireless, get the batteries out and put them back in. Check your drivers, update/reinstall them. Check the mouse for a hair or something small on the path of the laser. Check what happens if you plug in another mouse.

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If your batteries and everything else is fine, check what frequency your mouse operated at - other devices could be interfering with the wireless signal. A quick Google search would probably return some results about whether this is a common problem (I would have Googled but you didn't specify the mouse make and model) –  ekaj Dec 2 '12 at 7:25

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